the "news nation" is following the expanding investigation into the boston marathon bombings. officials said late today, the explosives were likely carried in backpacks and made to be essentially pressure cookers. likely triggered by a timer. meanwhile, we're nearing exactly 24 hours since the first bomb exploded at 2:50 eastern time yesterday afternoon. the fbi said it will go to the ends of the earth to find those responsible. the fbi is also asking for more pictures and even more video from the scene itself. in the last couple of hours, the

president updated the nation on the investigation. >> we continue to mobilize and deploy all appropriate law enforcement resources to protect our citizens and investigate and to respond to this attack. obviously, our first thoughts this morning are with the victims, their families, and the city of boston. we know that two explosions gravely wounded dozens of americans and took the lives of others including, an 8-year-old boy. this was a heinous and cowardly act and given what we now know about what took place, the fbi is investigating it as an act of terrorism. any time bombs are used to target innocent civilians, it is an act of terror. what we don't yet know, however, is who carried out this attack or why. whether it was planned and executed by a terrorist

organization, foreign or domestic, or was the act of a malevolent individual. that's what we don't yet know. and clearly we're at the beginning of our investigation. it will take time to follow every lead and determine what happened. but we will find out. we will find whoever harmed our citizens and we will bring them to justice point we also know this. the american people refuse to be terrorized. what the world saw yesterday in the aftermath of the explosions were stories of heroism and kindness and love. people kept running to the nearest hospital to give blood and those who stayed to tend to the wounded. some tearing off their own clothes to make tourniquets. the first responders who saved lives. the member and women who are still treating the wound asked

the medical students who hurried to help saying when we heard, we all came in. the priests who open their churches and ministered to the hurt and the fearful, and the good people of boston who opened their homes to the victims of this attack and those shaken by it. so if you want to know who we are, what america is, how we respond to evil, that's it. selflessly, compassionately, unafraid. >> right now, the normally clogged streets of downtown boston have been transformed into a closed off crime scene. a makeshift memorial. it could remain that way for days. boston police say it is the most complex crime scene in that department's history. today's heightened alert prompted two scares at airports. officials at boston's logan evacuated a plane, moved it away from the terminal in search of a suspicious package. at new york la laguardia airport, crews evacuated an entire terminal.

this speaks to the feeling throughout the country. now, this morning, the white house lowered its flags to half-staff in honor of the three peep who died and the more than 176 injured survivors. a prayer service is planned for tomorrow in boston. as the president mentioned, one of those who died is 8-year-old martin richard. a vigil will be held for this child tonight. the boy had just congratulated his dad who finished the marathon before returning to the stands moments before that blast. his mother was severely wounded. his 6-year-old sister lost her leg. his father released a statement only moments ago. in part it says my dear son martin has died from injuries sustained in the attack on boston. my wife and daughter are both receiving, recovering from serious injuries. we thank our family and friend, those we know and those we've never met for their thoughts and prayers. i ask that you continue to pray for my family as we remember martin. more than 100 people remain in area hospitals. 17 are in critical condition. several people required

amputations and doctors say more are likely. nbc news justice correspondent pete williams is standing by. i am just reading information that you put in regarding the components of this bomb and what authorities believe was used to make the explosives. what can you tell me? >> they say they were crudely made. that doesn't mean that they weren't powerful and they were. they were made with gunpowder, bbs and ball bearings packed inside a pressure cooker. let me point to a picture from a homeland security bulletin. we're going to get in real tight on these little pots down here. this is what pressure cookers look like. give it a second to focus and see how much tighter we can get. these are what pressure cookers look like in case you haven't seen them. these are rather inexpensive pressure cookers. in case you've not ever dealt with one. a pot with a cover on it that you can make basically air tight and food cooks faster. and then for at least a decade, they've been used to make bombs

around the world. so inside is the explosive and the authorities believe it is gunpowder or smokeless powder. all these parts are commonly available. so someone could, if they came to the united states, could come here without any parts at all and go out and buy them. then all set off with some kind of timer. they believe the bombs were carried to the scene in backpacks. >> and pete, you have also more information regarding, or at least an update. you had a lot of people online asking about the video that showed authorities searching an apartment in revere, massachusetts, overnight. what is the update on the search of that apartment and any individuals they've spoken with. >> right. that's an apartment belonging to a student who is here on a currently valid student visa who had come here to study in the u.s. who was at the scene. some people thought he was acting suspiciously. he was seen running away in a way that people who were there thought was unusual. he went to the hospital with burns. the fbi and boston police

questioned him at length last night. they sefd his apartment. they found nothing. he has denied any involvement and it does sound like while they'll continue to look into his background, that is no longer considered a very promising lead. >> with the investigation, we know that the fbi is the lead in this investigation. they're asking for videos, pictures. it sounds as if, i heard your report earlier, they are literally going to piece by piece put this together, as much as possible with technology and the cameras that were all around that scene. >> i think one of the authorities this morning described this as probably one of the most heavily photographed areas in the country yesterday. just because of this event going on. and they hope with so many lenses pointed and so many different directions, somebody somewhere got something that will be of investigative value. so what they'll try to do with the videos, to the extent that they can, match them up in terms of time. so that they are all registered. so the frame, as you go frame by frame, you're moving in the same

time dimension. you're going a second ahead in each one at the same time of day. and then they'll try to look at still photos and try to line those up as well, hoping they can see something there that maybe people weren't aware of at the time. >> all right. pete williams, thank you very much for the latest information on the investigation. let's to go kris jansing. she is at a crime scene focused on about 12 blocks. we've just gotten confirmation of the name of one of the other people who died there yesterday. 29-year-old crystal campbell. she was a 2001 graduate from medford high school. her father just in the last few minutes confirming the identity of his daughter, krystle campbell. now one of the names that we know in addition to 8-year-old. the focus is about a 12-block area. what else is happening on the ground? >> i can tell you that the investigators are determined to

find out who perpetrated this crime. they are focused on the victim, all 176 of them, just identifying the second of the three people who have died. i'm a few blocks from where the finish line was and we can see the s.w.a.t. vehicles. most has been cordoned off. this would normally be a bustling area, especially on a beautiful spring day like today. and many of the thousands of people who came here from nearly 100 different countries to run this marathon stay for another day. they become tourists and of course, it would normally be a day of business, not today. so many places are closed. they are painstakingly going over each and every inch that is cordoned off in this 12-block area. with 15 blocks, looking for all the kinds of information pete was talking about. even going to the hospitals and retrieving some of the shrapnel that was embedded in the bodies of some of the victims. police have been guarding the

perimeter, making sure that folks who want to could that in and take pictures just don't get too close. and when you talk about this being probably one of the most photographed areas on earth, for marathon monday, i can tell you that police have been saying, they're already getting so much information in and they have pledged at a news conference earlier today that anyone who calls, who has information, particularly video or pictures right before or right after these bombings, they will look at them. so very much an active crime scene. they expect it to go on for days and although they say they would obviously like the city to get back to normal, that would just mean that the barricades come down and cars and pedestrians come through. a very different sense of what it is to be in boston now than it was obviously before this bombing. >> you mentioned, chris, pedestrians. i saw vehicles, for example, that people used to drive down to the marathon. many of them in garages are not being allowed to pick up those cars because the investigators

on the scene literally want to look at every car in these garages in and around the crime scene. >> reporter: you can just even imagine in a city like this, the amount of information that they're trying to process. remember when they thought there might have been more than two bombs and they had to go through all of those purses and backpacks. people just threw them and ran away from the scene for fear of their lives. same thing with the cars. people who can't get to their homes. so they are trying as much as they can to allow people to get back to their cars, back to their home. let these businesses reopen. they're not going to do it at the expense of the investigation. >> thank you very much. back to the white house. we've been told the president is getting regular briefings from his security team on the attacks. here's a little more of what the president said a few hours ago. >> in the coming days, we will pursue every effort to get to the bottom of what happened and we will tip to remain vigilant. i've directed my administration to take appropriate security measures to protect the american

peep and this is a good time for all of us to remember that we all have a part to play in alerting authorities if you see something suspicious, speak up. i have extraordinary confidence in the men and women of the fbi, the boston police department and the other agencies that responded so heroically and effectively in the aftermath of yesterday's events. i'm very grateful for the leadership of governor patrick and mayor menino. i know as we protect our people and aggressively pursue this investigation, the people of boston will continue to respond in the same proud and heroic way that they have thus far. and their fellow americans will be right there with them. when we have more details, they will be disclosed. what i have indicated to you is what we know now. we know it was bombs that were set off. we know that obviously, they did some severe damage. we do not know who did them.

we do not know whether this was an active organization or an individual or individuals. we don't have a sense of motive yet. so everything else at this point is speculation. but as we receive more information, as the fbi has more information, as our counter terrorism teams have more information, we will make sure to keep you and the american people posted. >> let me bring in nbc news white house correspondent kristen welker. she joins us now. the president in contact and regularly being briefed by his advisers. but listening to the president just like with so many people at home, he is saying there that there are more questions still than answers, at least that they can disclose. >> reporter: right. it is still very early on in this investigation, tamron. the big question that they are trying to answer right now, was this a domestic act of terrorism or a foreign act of terrorism. the other big takeaway from the

president's remarks are that he used that term. he said this is being investigated as an act of terrorism. remember when he spoke yesterday, he refrain from using that word. white house officials said that is because he spoke about three hours after those blasts went off. he wanted to be very cautious in terms of his word choice. the white house a few minutes after the president spoke yesterday did put out a statement saying that it does appear this is an act of terror. you heard the president say he spoke to mayor tom menino. that he has spoken to governor patrick and he told them, he would be putting the full weight and resources of the federal government behind figuring out who exactly is responsible for this. so still a very somber day here at the white house, tamron. as in past tragedies, the president has visited communities who are suffering. i would not be surprised if we saw president obama take a trip to boston in the coming days. >> thank you very much of before we go to break, i want to reiterate is breaking news from

pete williams, that it fathers bombs were explosives made of pressure cookers placed at the scene. likely in backpacks. the explosive charge, according to the information, could propel shrapnel and fragments of that pressure cooker itself at speeds of 3,300 feet per second. that's more than three times the speed of a .9 millimeter round fired from a gun. so we're getting more information on the actual material used to create that explosives and how they may have gone undetected by so many people if they were hidden in, as believed right now, backpacks. that is the latest information regarding the details of the explosives used. security now being ramped up at sporting events in los angeles, oklahoma, even london and germany. back to boston. tonight's celtics game has been canceled. up next, more on the complexity of securing large events that so many of us attend. as we go to break, i'll look at

the moment of silence in honor of the victims of boston attack on the floor of the new york stock exchange. [ male announcer ] what?! investors could lose tens of thousands of dollars in hidden fees on their 401(k)s?! go to e-trade and roll over your old 401(k)s to a new e-trade retirement account. none of them charge annual fees and all of them offer low cost investments. e-trade. less for us. more for you. a body at rest tends to stay at rest... while a body in motion tends to stay in motion. staying active can actually ease arthritis symptoms. but if you have arthritis, staying active can be difficult. prescription celebrex can help relieve arthritis pain so your body can stay in motion. because just one 200mg celebrex a day can provide 24 hour relief for many with arthritis pain and inflammation.

plus, in clinical studies, celebrex is proven to improve daily physical function so moving is easier. celebrex can be taken with or without food. and it's not a narcotic. you and your doctor should balance the benefits with the risks. all prescription nsaids, like celebrex, ibuprofen, naproxen and meloxicam have the same cardiovascular warning. they all may increase the chance of heart attack or stroke, which can lead to death. this chance increases if you have heart disease or risk factors such as high blood pressure or when nsaids are taken for long periods. nsaids, like celebrex, increase the chance of serious skin or allergic reactions or stomach and intestine problems, such as bleeding and ulcers, which can occur without warning and may cause death. patients also taking aspirin and the elderly are at increased risk for stomach bleeding and ulcers. don't take celebrex if you have bleeding in the stomach or intestine, or had an asthma attack, hives, other allergies to aspirin, nsaids or sulfonamides. get help right away if you have swelling of the face or throat, or trouble breathing. tell your doctor your medical history. and find an arthritis treatment for you. visit celebrex.com and ask your doctor about celebrex.

for a body in motion.

there were families all around us with kids, yelling and screaming. we just wanted to try to get away as quick as possible. but i mean, even being around the tall buildings, it is scary. >> the deadly attack in boston is prompting increased security in cities across the country for a second day, the area around the white house being closed off to pedestrians. there is visible police presence throughout the city. there is also heightened security around new york, atlanta, oklahoma city. cities that have been hit by bomb attacks in the last 20 years. officials in oklahoma city say

they intend to go forward with a marathon plan for this friday. a marathon that is part of an annual remembrance of the 1995 bombing and more tough measures are expected for upcoming events like the kentucky derby ask the indianapolis 500. tom costello is in washington. what are your sources telling you? i know you've been on the phone with a lot of people. >> most cities will go ahead with the events they have planned. this is spring in america and many cities plan many events to take advantage of the good weather. my contacts i've been talking to have suggested, listen. you are probably going to see an increased security presence, perhaps at the airports, when you fly someplace. you you might see the tsa doing a double-check. they might be less forgiving of something in their bag that causes them suspicion. before they might have given it a pass. they won't do that right now. one big concern is the sequester and what if any effects that might have on the tsa staffing

levels around the country as they take this elevated posture even more seriously. at specific police departments around the country, you're seeing more showing of the badge. what that means is that we're really seeing maybe not an increase in staffs but more of a visible presence them want to be sure that the public is aware that they are on the job and doing their job. so everywhere from of course, new york and boston to l.a. to denver. you name it. you're likely to see that. we can also talk about two events. that really speak to how much the country is really kind of on edge, more so than it's been in recent years. we have the event today at boston logan airport. we had a u.s. airways flight that was evacuated out on the ramp because of a report of a suspicious package. they found that was nothing to be concerned about. and then laguardia airport. the central terminal evacuated also because of a suspicious package. this really goes to that whole notion that we saw underscored again today by the mayor of new

york and also by the police commissioner saying if you see something, say something. we've seen it repetitioned across the country over the last 24 hours. it speaks to this tightened sense of awareness and status of alert. >> thank you very much. let me bring in security expert, anthony roman. thank you for your time. looking for an article posted on mother jones website. it says attacks on sporting events are surprisingly rare. with that said wlrg you see devastation lake this, it only takes one to impact our country. it only takes one for you to attend. that's all it takes. so with that that, we always hear the scenario of how vulnerable or how weak some of these sporting events are when it comes to security because of the number of people. you simply cannot secure these events completely. what is your take on it? >> well, the larger the crowd, the more difficult it is to defend against it. in the case of the marathon, we had the 26 plus mile route. that becomes particularly difficult. so what you try to do is

concentrate a lot of your resources where the crowds gather most. that would be at the starting of the event where thousands of runners are gathering. and at the end of the event where the runners are finishing. you have a tremendous amount of media and you have lots of family waiting and the reviewing stands. >> so you're the expert. you go into one of these events. i mentioned the boston celtics game canceled tonight. you have something where you have tens of thousands inside and out. what is the urgent priority as far as making sure we're all safe? there was a time when we discussed using metal detectors. people were inconvenience asked no one wanted that. so you're ham strung in one way. the other is finding a solution as best as possible. >> awawe are a democracy so it more difficult. >> but we're a democracy who wants to stay safe. we have the tsa when we fly. >> the police intelligence divisions begin their assessments months in advance of

these kinds of events. they develop their undercover sources. they check in to their electronic surveillance methods. they handle all sorts of development of intelligence to see where the real risk may lie. and then the police bomb squads begin to assess the locales, the specialty units look at the areas of vulnerability. in the case of a city like new york where there are a tremendous number of resources. 38,000 police officers, a good deal of specialty units, aviation units. what they do is they seal the manhole covers. this he take away all the receptacles. >> is that all a result of what happened here with 9/11? are those all post 9/11? >> those are all post 9/11. they put detectors in the sewer system, radiation detectors to determine whether or not there is a dirty bomb in the area. there are spotters on the roof and snipers on roof tops.

and new york, like london, has one of the most sophisticated surveillance systems in the world that has software that is called smart an it will i cans. >> do we see that same technology in boston? >> we do not. not to the level that new york has it. >> so you have new york if it is a appear mid at the top as a result of 9/11. and other major cities who fall beneath there. >> boston was never thought to be as vulnerable or a serious a risk as new york, washington, d.c., chicago, san francisco, los angeles. they have a police department of 5,000 men compared to 38,000 in new york. just the manpower issue is a question alone. it become more difficult for them from a manpower point of view to remove all the mailboxes. to remove all the receptacles so they try to concentrate their manpower in more usable and functional ways. >> thank you so much for your time. we greatly appreciate it.

>> up next, we'll be joined by fbi profiler clint van zandt with this latest news on the bombing could tell us regarding the individual or individuals behind it. speaking specifically on the new information we have regarding the components, what was used to make these explosives and how they were able to conceal them with so many people around. we've got the latest information. pete williams is reporting on the explosives and this pressure cooker used to make them. plus, this is just one of the image that's stuck with so many people. a man you see there wearing a cowboy hat at the marathon to support fallen veterans. his own son lost his life in iraq and today he is one of the many being called a hero. >> the sidewalk volunteers, instead of running away, they stopped and fell and worked on people. when the boston and athletic association volunteers came, they came with supplies. once you got in the medical tent, it was all an e.r. physician could ask for. step seven point two one two. verify and lock.

command is locked. five seconds. three, two, one. standing by for capture. the most innovative software on the planet... dragon is captured. is connecting today's leading companies to places beyond it. siemens. answers. since aflac is helping with his expenses while he can't work, he can focus on his recovery. he doesn't have to worry so much about his mortgage, groceries, or even gas bills. kick! kick... feel it! feel it! feel it! nice work! ♪ you got it! you got it! yes! aflac's gonna help take care of his expenses. and us...we're gonna get him back in fighting shape. ♪ [ male announcer ] see what's happening behind the scenes at ducktherapy.com. [ male announcer ] see what's happening behind the scenes clusters of pustules, pimples. i had this shingle rash right next to my spine. the soreness was excruciating. it was impossible to even think about dancing.

when you're dancing, your partner is holding you. so, his hand would have been right in the spot that i had the shingles. no tango. no rhumba. you can't be touched. for more of the inside story, visit shinglesinfo.com

the day building a play set begins with a surprise twinge of back pain... and a choice. take up to 4 advil in a day or 2 aleve for all day relief. [ male announcer ] that's handy. ♪ mr. wiggles and curling irons. for the little mishaps you feel, use neosporin to help you heal. it kills germs so you heal four days faster neosporin. also try neosporin eczema essentials.

we're now able to confirm that we have removed objects from at least three patients that were clearly designed to be projectiles and built into the explosive device. these are ball bearing type or small shot type, a little larger than bb round metallic beads. and we have also removed over a dozen small carpenter type nails from one patient. >> that was the chairman of the emergency medicine at boston's brigham women's hospital, talking about what was packed in the bombs that exploded yesterday. joining me now is former fbi profiler clint van zandt. we've gotten this information from pete williams at the top of the hour regarding the components used to make this explosive. or these explosives. a pressure cooker bomb. the explosive charge could propel, according to the information, shrapnel and fragments to speeds of 3,300 feet per second.

three time more than a, the speed of a .9 millimeter. the components alone, what does that tell you? >> we've known about these pressure cooker bombs for at least the last dozen years. we've seen them used in pakistan, afghanistan and other places like this. iuds. it has been a popular device there and there is a lot of information on the internet, too. but the interesting thing and i'm sure you know, too, in the failed new york city bombing within the last couple years, that individual who was going to blow his car up in time square, he used a pressure cooker device. so one can say, well, that has a middle eastern type of flare to it. it is something we see used by middle eastern terrorists but it is something that is also popular on the internet. so somebody else could see how to build that device. and again, it is not hard to get

ahold of a pressure cooker, fill it up with shrapnel. a very common anti-personnel device that does just what this did. to injure, maim and create terror. >> to your point, 1976, a croatian nationalist place ad pressure keerk bomb in a locker in grand central terminal. that device went off as technicians attempted to dismantle it, killing one nypd officer and badly injuring another. that was in 1976. these types of explosive devices have been used many times, including as you said, with the bomber who was in time square. >> yeah. it is an easy to get ahold of device. i think the challenge for the authorities right now is they will try to trace back the device as your previous guest said. the size of the bbs, the shrapnel, we'll be for that. we'll try to determine if it was

a timer device or if it was a command detonated like a driveway, like a garage opener or someone could stand away and click that button and watch what happens. but know this. there is a lot of forensic evidence concerning the explosive, the propellent that was used, the shrapnel that was used, the device. there is a lot of thing those men and women in law enforcement crawling around on the street right now. they will at least on paper assemble what that looks like and they'll know what they're looking for in the stores and shops all over the boston area. >> and we're focusing on the crime scene itself near the marathon, that 12 blocks. we know there is likely another crime scene. some of the information, for example, with investigators that it is likely, the bomb itself was not assembled anywhere near. it would be a dangerous type of explosive to try to transport a long distance. we're focused, of course, on the

site itself. this is not a one crime scene event, clint. >> no. in fact we've got multiple issues. we've got where in the explosive was assembled. we have the vehicle that was used to transport it from the point of assembly to the race. and then we've got the remains that are left at the race. and realize, two went off. there could very well be more devices at the bomber's residence, for example. so that's why the authorities are moving very quickly. there is a strong potential if you build two, you could build more than that. so they're trying to find this person and preserve the evidence. >> and quickly, regarding the number of surveillance cameras, we know that as reported, that marathon may have been the most photographed event of the day anywhere. in pro fail work that you do, profile work that you do, the individuals know the risks when

they go into a situation like that. do they process that? that all of these cameras are there when they're attempting to place this explosive in a backpack or not, the number people around who could see something? >> well, again, in that environment, you can wear a hat, a hood, sunglasses. but this person is likely one minded. they wanted to get in, plant the devices and be gone. even though they may be trying to duck and hide from cameras that are on the wall, there will be cameras in banks, convenience stores and thousands of people with iphones and a devices taking pictures. that's why law enforcement is at airports, bus terminals, train stations, asking people if you have pictures, especially taken directly before the explosion. share those with law enforcement. the bomber's picture is there. we just have to pick it out among the thousands of pictures that exist. >> all right. thank you for your time. still ahead, another live report from boston on the ground where the investigation stands right

now. plus, we have new video coming in of the bombing of the point of view of a runner. we'll show you that video. er ] s joe woods' first day of work. and his new boss told him two things -- cook what you love, and save your money. joe doesn't know it yet, but he'll work his way up from busser to waiter to chef before opening a restaurant specializing in fish and game from the great northwest. he'll start investing early, he'll find some good people to help guide him, and he'll set money aside from his first day of work to his last, which isn't rocket science. it's just common sense. from td ameritrade. it's just common sense. hoo-hoo...hoo-hoo. hoo-hoo hoo. sir... i'll get it together i promise... heeheehee. jimmy: ronny, how happy are folks who save hundreds of dollars switching to geico? ronny:i'd say happier than the pillsbury doughboy

on his way to a baking convention. get happy. get geico. fifteen minutes could save you fifteen percent or more.

the brand new video of yesterday's explosion. the clip shows runner jennifer treacy's view as she reached the finish line moments before the blast. she thankfully survived but this was another van tang point to see til pact of those explosives yesterday. we continue to monitor the latest information on the investigation. officials said late today, the bombs were likely carried inside backpacks. they were made of an explosive and shrapnel packed inside a pressure cooker. the bombs were probably triggered, they believe, by a timer. of the more than 170 people injured in the bombings, at least 17 are listed in critical condition. a total of 103 people remain

hospitalized. that is down from 125 people last night. right now, at the scene, mourners are leaving small bouquets of flowers and other mementos in honor of the victims. nbc's tom is with us in boston. i imagine you've had an opportunity to talk to people who are stunned. it is 2:40 eastern time. exactly 24 hours and ten minutes, 2:50 eastern time is when the first explosive detonated. >> that's a good point. the fbi and the boston police department have centralized the investigation to a 12-block radius. that's what you see behind me. that's where the mourners are showing up. that's where you see the police barricades. if you walk a few streets east or west, north or south, all see is this beautiful second quarter of boston. there is great shopping, beautiful homes. if you walk down the street long enough, it looks like life is normal. then you make a quick left and you see this massive crime

scene. a place where a horrible thing happened, a child lost his life yesterday. so people here are trying to get their lives back to normal. it is still weighing very heavily on a lot of people. both marathoners and residents of boston. we've seen a lot of people wearing boston red sox gear to show some of their pride. a lot of the marathoners are walking up to the barricades. i had a chance to speak to a few of them. one man from new jersey has yet to change his clothes. he finished the race. his hotel was in the middle of all this action so towed walk to camden. he overnighted there in the lobby. he said he hasn't taken a shower. his toe nails are black and blue with you he is so happy to be alive. other marathoners have survivors guilt. they finished too soon or too late and they missed the bombing. they are mourning and paying their respect to those lives lost. >> we've received confirmation on the identity of the second

victim, krystel campbell of medford, massachusetts. her family confirming the information. the 29-year-old graduate from medford high school in 2001. so we're at least getting more information on the people who lost their lives there. again, krystle campbell in addition to 8-year-old martin richard of dorchester toup. >> as the story develops and we get the images of these people. we can put a face behind the number. it gets more powerful. we know that martin richard, the 8-year-old, they'll have a memorial service later tonight. his family was well loved in this community and that story is truly heart breaking. his sister loses a leg, he loses his life and his mother has brain surgery and they were all there to watch daddy run the marathon. as this news about the pressure cookers and the backpacks, as that becomes more widespread, i think you will see people looking at other people with backpacks here.

it is human nato nature. something people are prone to do. it is something i will do without thinking about it. >> thank you very much. we appreciate you joining us live with the latest from boston. still ahead, in the world of politics, what is ahead after the attacks on boston. much has been impacted by the investigation. we're going to talk with nbc senior political editor about the latest developments on immigration gun control. but first, a look at next week's cover of "sports illustrated" honoring the victims and featuring just one of the many photos from yesterday's tragedy. carfirmation. only hertz gives you a carfirmation. hey, this is challenger. i'll be waiting for you in stall 5. it confirms your reservation and the location your car is in, the moment you land. it's just another way you'll be traveling at the speed of hertz. by the armful? by the barrelful? the carful? how about...by the bowlful? campbell's soups give you nutrition, energy, and can help you keep a healthy weight. campbell's.

it's amazing what soup can do. there's a lot i had to do... watch my diet. stay active. start insulin... today, i learned there's something i don't have to do anymore. my doctor said that with novolog® flexpen, i don't have to use a syringe and a vial or carry a cooler. flexpen® comes prefilled with fast-acting insulin used to help control high blood sugar when you eat. dial the exact dose. inject by pushing a button. no drawing from a vial. you should eat a meal within 5 to 10 minutes after injecting novolog® (insulin aspart [rdna origin] injection). do not use if your blood sugar is too low, or if you are allergic to any of its ingredients. the most common side effect is low blood sugar, which may cause symptoms such as sweating shakiness, confusion, and headache. severe low blood sugar

can be serious and life-threatening. ask your health care provider about alcohol use, operating machinery, or driving. other possible side effects include injection site reactions and low potassium in your blood. tell your health care provider about all medicines you take and all of your medical conditions. get medical help right away if you experience serious allergic reactions such as body rash, trouble with breathing, fast heartbeat, or sweating. flexpen® is insulin delivery my way. covered by most insurance plans, including medicare. find your co-pay cost at myflexpen.com. ask your health care provider about novolog® flexpen today

i'm your hot water heater. you hardly know i exist. that's too bad. 'cuz if my pressure relief valve gets stuck... [ booooooom! ] ...we hot water heaters can transform into rocket propelled wrecking balls. and if you got the wrong home insurance coverage, it's your bank account that might explode. so get allstate. [ dennis ] good hands. good home. make sure you have the right home protection. talk to an allstate agent. sympathy for the victim of this senseless attack. that families are suffering today. >> the tragedy events in boston that put washington politics on hold in some ways. today we saw significant movement on immigration reform.

instead of the scheduled press conference, chuck schumer and john mccain will brief the president at the white house. joining me now, senior political editor mark murray. so mark, of course, the events in boston have impacted everything. >> politics and particularly the stories that you and i often talk about when it come to gun, immigration, even electoral politics have taken a back seat to the events taking place in boston. but there is some movement on immigration. nbc news has learned a lot of the details in the gang of eight immigration reform proposal that those bipartisan senators have put together. you mentioned that there are some meetings with president obama about this at the white house. however, there wasn't going to be a press conference. that ended up getting canceled about any type of situation like that. then on gun control. my colleague kasie hunt is reporting that getting the 60 votes, it is facing some hurdles

on getting to that 60-vote threshold. >> okay. thank you very much. we'll talk of course with you tomorrow on both of those issues and give our audience the latest developments. thank you. among those being hailed as heroes following the boston marathon bombings, the amman all over the internet. it is an image captured by an ap photographer. he seemed frantically trying to help a man in a wheelchair to an ambulance. the same man in that cowboy hat and that now, you can probably call it a famous picture. so many people have sent it out. he was also seen clearing away debris from the bombing scene. his name is carlos arrendondo. we just had him on the line and we had a technical glitch. he was there to support iraq war veterans. one of many there supporting people who representing different causes. he actually lost both of his sons, both his sons fought in the iraq war. and he knows tragedy all too

well. he was there to support the men and women fighting for our country at war. hopefully we'll be able to work out this technical difficulty and talk to carlos. so many people have been intrigued by his story, his heroism and we want to talk with him. still ahead we'll talk with massachusetts congressman steven lynch who knows the family of the 8-year-old little boy who lost his life. we'll find out more about the family. how they are coping this very difficult day. >> as i got closer to the sidewalk, it was just a pile of bodies and blood on the scene. it was just a horrible scene like it was a spielberg horror movie. [ female announcer ] girls don't talk about pads, but they do talk about always infinity. [ woman ] i feel like i'm barely wearing anything! [ female announcer ] the only pad made from a revolutionary material. it absorbs up to 55% more. [ woman ] amazing. [ female announcer ] it's incredible protection, you'll barely feel it. always infinity. tell us what you think.

[ sneezes ] you're probably muddling through allergies. try zyrtec® for powerful allergy relief. and zyrtec® is different than claritin® because it starts working faster on the first day you take it. zyrtec® love the air.

the family of 8-year-old martin richard mourning today. he is the youngest casualty of the double explosion. his mom and his sister recovering today. his sister actually lost her

leg. democratic congressman steven lynch represents the city of boston. he is a close friend of the richard family. thank you for your time. the details of what happened to martin richard has to give everyone pause. this kid went to hug his father. went back to be with his mother and sister and that's when the impact happened. have you had an opportunity to talk with the family members or people in the neighborhood? >> i have. i spend a lot of time last night in the wee hours this morning with the family. i was just over there today visiting their daughter as well with their father bill. there has been some confusion here. bill is a runner but he didn't run yesterday. he and denise took their three kids just to watch some friends who were running in the marathon. apart from the elite runners, there are also thousands, tens of thousands of people who run for various charities, for the

liver foundation, for dana farber so they went over to see some friends who were running. so bill and denise and the kids were all intently watching the crowd as the runners came across just to see if they could see some of their friends. that's why they were there. and they heard the first explosion. which was further up the street. and there was a scramble. no one really knew which way to go. there was a sense that getting into the street was the safest thing to do. but the barrier that was there was preventing the crowd from doing that. and that's when they had gone to the barrier and were trying to get into the street. that's when the second bomb detonated. look, i just want to say this is a wonderful, wonderful family. the richard family and the

o'brien family, denise's maiden name is o'brien. just good people. good citizens. active in the community, active in baseball. the boys played baseball. their daughter, very active. just a good family. hard working people. denise is a librarian at one of our local charter schools. an absolute sweetheart. and just good family. and so they asked me to convey this as well. they are so thankful, so thankful of the emergency responders who rescued them. bill said, you know, he described the detonation and the impact and he said literally in the seconds after the explosion, it was really a swarm of people coming forward to help. help his daughter, especially. he said that he credited

civilian responders and also uniformed responders with saving his daughter's life there in the street. he did not think she would make it without that help that they gave. he is also, the family is also very thankful for the dor chester community and the city of boston, the state and the country for their show of support. they're carrying a heavy burden. they lost their son. they lost martin. their daughter jane is still not out of the woods. i just left her a little while ago. she is still fighting valiantly but certainly has some real challenges. they actually feel like this burden is not theirs alone because of the response that has could that from the neighborhoods there in dorchester, the city of boston, the state, as well as from

around the country. they feel like the people across the country helping them carry that burden. >> absolutely. >> so your prayers are most welcome. and they're just going through a tough time right now. amazingly, people keep asking me, how are they doing? they're doing better than you would ever expect under the strain. it has been incredible. >> i know that they are thankful that they have people like you who are there at their side. and as you mentioned, they're welcoming the prayers and congressman, we know the prayers are there with them. thank you so much for your time. that does it for this edition of "news nation." "the cycle" is up next. tdd#: 1-800-345-2550 when i'm trading, i'm totally focused.

tdd#: 1-800-345-2550 tdd#: 1-800-345-2550 and the streetsmart edge trading platform from charles schwab... tdd#: 1-800-345-2550 gives me tools that help me find opportunities more easily. tdd#: 1-800-345-2550 i can even access it from the cloud and trade on any computer. tdd#: 1-800-345-2550 and with schwab mobile, tdd#: 1-800-345-2550 i can focus on trading anyplace, anytime. tdd#: 1-800-345-2550 until i choose to focus on something else. tdd#: 1-800-345-2550 all this with no trade minimums. tdd#: 1-800-345-2550 and only $8.95 a trade. tdd#: 1-800-345-2550 open an account with a $50,000 deposit, tdd#: 1-800-345-2550 and get 6 months commission-free trades. tdd#: 1-800-345-2550 call 1-866-884-2828.

welcnew york state, where cutting taxes for families and businesses is our business. we've reduced taxes and lowered costs to save businesses more than two billion dollars to grow jobs, cut middle class income taxes to the lowest rate in sixty years, and we're creating tax free zones for business startups. the new new york is working